One problem related to tire sidewall has been reported for the 1999 Audi A8. The most recently reported issues are listed below.
After inspecting my michelin primacy mxv4 tires on my Audi A8 I became alarmed about excesive sidewall cracking and searched for recalls. . . None? began reading complaints and noticed many other sidewall "dryrot" issues. Will take back to retailer to seek help!? hope to prevent a blowout!.